About Circuit Protection

Circuit Protection

Circuit protection is a set of practices and components used to protect an electrical circuit from damage caused by a short circuit, an overload, or excess voltage. This includes a variety of techniques such as the use of fuses, circuit breakers, and surge protectors. Circuit protection can also be used to prevent fires or other dangerous situations by cutting off the power when a fault is detected. Circuit protection can keep equipment safe and increase the life of components and wiring.

Circuit Protection

Circuit Breakers & Accessories

Circuit Protection Kits

ESD Protection Diodes / TVS Diodes

Fuse Holders

Fuses

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

LED Protection Devices

Surge Protective Devices - SPD

Surge Suppressors

Thermistors

Varistors

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty

NTCS0603E3124SMT

NTC (Negative Temperature Coefficient) Thermistors 122Kohms 1%
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Vishay

7167
Ships to you
between Thu. 23 Jul to Mon. 27 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.6571

Multiples of: 1

NPPSH103F3T1NA001 REV A

NTC (Negative Temperature Coefficient) Thermistors CUST_EL_TMP_SENS-0 - NPPSH103F3T1NA001 REV A
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse

7166
Ships to you
between Thu. 23 Jul to Mon. 27 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 7.6615

Multiples of: 1

SM103J1K-TR

NTC (Negative Temperature Coefficient) Thermistors NTC 10K OHM +/- 10%
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

US Sensor

7160
Ships to you
between Thu. 23 Jul to Mon. 27 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.4731

Multiples of: 1

5.0SMDJ58A-Q

ESD Suppressors TVS Diodes 58V 5KW UNIDIR SMC AECQ
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Bourns

7149
Ships to you
between Thu. 23 Jul to Mon. 27 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 1.2822

Multiples of: 1

PESD2IVN24(UMW)

SOT-23 Electrostatic and Surge Protection (TVS/ESD) ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Youtai

6266
Ships to you
between Fri. 31 Jul to Wed. 05 Aug

August 2026

August 2026
	S	M	T	W	T	F	S
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8
33	9	10	11	12	13	14	15
34	16	17	18	19	20	21	22
35	23	24	25	26	27	28	29
36	30	31	1	2	3	4	5

AUD 0.031

Multiples of: 20

SRV05-4

4.5A 18V 300W 6V Unidirectional 5V SOT-23-6L Electrostatic and Surge Protection (TVS/ESD) ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

GOODWORK

6130
Ships to you
between Fri. 31 Jul to Wed. 05 Aug

August 2026

August 2026
	S	M	T	W	T	F	S
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8
33	9	10	11	12	13	14	15
34	16	17	18	19	20	21	22
35	23	24	25	26	27	28	29
36	30	31	1	2	3	4	5

AUD 0.0326

Multiples of: 20

SMAJ24CA

TVS SMA RoHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TWGMC

4559
Ships to you
between Fri. 31 Jul to Wed. 05 Aug

August 2026

August 2026
	S	M	T	W	T	F	S
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8
33	9	10	11	12	13	14	15
34	16	17	18	19	20	21	22
35	23	24	25	26	27	28	29
36	30	31	1	2	3	4	5

AUD 0.0262

Multiples of: 20

P4SMAJ28A

Diode: transil; 400W; 31.1÷34.5V; unidirectional; DO214AC
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Diotec

4213
Ships to you
between Fri. 17 Jul to Thu. 23 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0857

Multiples of: 1

CPDUR12V-HF

ESD Suppressor TVS 2-Pin SOD-523F T/R
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Comchip

3739
Ships to you
between Fri. 31 Jul to Wed. 05 Aug

August 2026

August 2026
	S	M	T	W	T	F	S
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8
33	9	10	11	12	13	14	15
34	16	17	18	19	20	21	22
35	23	24	25	26	27	28	29
36	30	31	1	2	3	4	5

AUD 0.1463

Multiples of: 5

D5V0M1U2S9-7

ESD Suppressors / TVS Diodes Bi-Directional 35pF Dataline Protection
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Diodes Incorporated

3317
Ships to you
between Fri. 31 Jul to Wed. 05 Aug

August 2026